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Table 2 Clinical parameters of non-pregnant and pregnant women

From: Increase in Bifidobacterium is a characteristic of the difference in the salivary microbiota of pregnant and non-pregnant women

  Non-pregnant women (n = 30) Pregnant women (n = 35) P
Age (years) 31.3 ± 5.8 30.1 ± 3.9 0.649
(20–42) (23–40)
Height (cm) 158.5 ± 5.9 158.4 ± 6.0 0.974
(148.0–168.0) (145.0–169.0)
Weight (Kg) 53.0 ± 7.9 62.3 ± 8.4 0.000
(44.0–86.0) (48.6–80.6)
Estradiol (pg/mL) 1.59 ± 0.12 56.04 ± 6.61 0.000
(0.54–5.14) (3.37–267.00)
Progesterone (pg/mL) 87.60 ± 7.99 1760.85 ± 106.91 0.000
(3.37–394.09) (283.42–9187.01)
Infant birth weight (g) 3018.39 ± 425.42
(2120–3775)
Mean PPD (mm) 1.96 ± 0.17 2.22 ± 0.28 0.000
(1.7–2.3) (1.6–2.9)
PD ≥ 4 mm (%) 0.33 ± 0.83 1.48 ± 3.59 0.647
(0–4.17) (0–10.71)
BOP (%) 8.18 ± 6.25 7.77 ± 8.15 0.427
(0–20.8) (0–28.6)
Mean GI 0.04 ± 0.08 0.29 ± 0.41 0.001
(0–0.30) (0–1.43)
PESA (mm2) 968.97 ± 106.86 1199.29 ± 155.30 0.000
(780.5–1166.3) (891.6–1571.2)
PISA (mm2) 86.74 ± 71.02 106.57 ± 122.13 0.946
(0–237.4) (0–521)
DMF 6.03 ± 5.71 5.59 ± 5.03 0.780
(0–22) (0–17)
Smoker 3 3 0.844
(former 1, current 2) (former 3)
  1. Bold values are statistically significant
  2. Clinical cut offs; probing depth ≥ 4 mm and ≥ 10% BOP (Definition of healthy; no probing attachment loss, probing depth ≤ 3 mm and ≤ 10% BOP)
  3. Values are shown as mean ± standard deviation (SD) (range) or percentage ± SD (range)
  4. PPD probing pocket depth, BOP bleeding on probing, GI gingival index, PESA periodontal epithelial surface area, PISA periodontal inflamed surface area, DMF decayed, missing, and filled teeth. Statistical analysis of clinical parameters in non-pregnant and pregnant women was performed by Mann–Whitney U-test